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05 April 2024, 19:05:47 UTC
Revision 4c30c6f566c0989ddaee3407da44751e340a63ed authored by Nishanth Aravamudan on 25 August 2011, 22:59:11 UTC, committed by Linus Torvalds on 25 August 2011, 23:25:34 UTC 
kernel/printk: do not turn off bootconsole in printk_late_init() if keep_bootcon
 
It seems that 7bf693951a8e ("console: allow to retain boot console via
boot option keep_bootcon") doesn't always achieve what it aims, as when
printk_late_init() runs it unconditionally turns off all boot consoles.
With this patch, I am able to see more messages on the boot console in
KVM guests than I can without, when keep_bootcon is specified.

I think it is appropriate for the relevant -stable trees.  However, it's
more of an annoyance than a serious bug (ideally you don't need to keep
the boot console around as console handover should be working -- I was
encountering a situation where the console handover wasn't working and
not having the boot console available meant I couldn't see why).

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Greg KH <gregkh@suse.de>
Acked-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Cc: <stable@kernel.org>		[2.6.39.x, 3.0.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 4733123
History
Tip revision: 4c30c6f566c0989ddaee3407da44751e340a63ed authored by Nishanth Aravamudan on 25 August 2011, 22:59:11 UTC
kernel/printk: do not turn off bootconsole in printk_late_init() if keep_bootcon
Tip revision: 4c30c6f
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